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Is (5x^3-2x^2+x-1) a polynomial?

Answer and explanation

Correct answer: Yes, because all powers of x are non-negative integers.

Yes, (5x^3-2x^2+x-1) is a polynomial because the powers of x are 3, 2, 1, and 0, all of which are non-negative integers. The constant term -1 can be viewed as -1x^0. Having four terms or a term containing x^3 does not prevent an expression from being a polynomial. Exam tip: in a polynomial, the exponent of a variable must be 0 or a positive integer.

Related tags

PolynomialsDefinition Of PolynomialExponentsConstant TermClass 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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